The design and simulation of dual-frequency circularly polarized microstrip antenna

Author

Li-Li, Wang

Author_Institution

Sch. of Autom. & Inf. Eng., Xi´´an Univ. of Technol., Xi´´an, China

fYear

2010

fDate

Nov. 29 2010-Dec. 2 2010

Firstpage

87

Lastpage

89

Abstract

A novel dual-frequency circularly polarized microstrip antenna is designed in this paper. The antenna has a structure of two microstrip board layers, and employs two circular patches which have different radius can achieve the resonance of dual-frequency, which opens a slot in the upper radiation patch in order to reduce the patch size. The antenna can work at GPS L1 band (1.575GHz) and Beidous band (2.492GHz). Applying ANSOFT HFSS software, the simulation shows that this antenna can meet the demands of the signals of satellite navigation system. Compared with the conventional dual-frequency circularly polarized microstrip antenna, the size of the antenna is reduced and the structure is compact and easy to be fabricated and has a good application prospect.

Keywords

microstrip antennas; multifrequency antennas; polarisation; satellite antennas; satellite navigation; ANSOFT HFSS software; Beidous band; GPS L1 band; dual-frequency circularly polarized microstrip antenna; frequency 1.575 GHz; frequency 2.492 GHz; microstrip board layers; satellite navigation system; Axial ratio; Circular polarization; Dual-frequency; Microstrip antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas Propagation and EM Theory (ISAPE), 2010 9th International Symposium on

Conference_Location

Guangzhou

Print_ISBN

978-1-4244-6906-2

Type

conf

DOI

10.1109/ISAPE.2010.5696402

Filename

5696402